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added stake cache + checked ismine

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This commit is contained in:
janko33bd
2018-01-30 23:52:33 +01:00
parent 6bb3826fe1
commit c1e0fac4f8
5 changed files with 92 additions and 29 deletions
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44
src/wallet/wallet.cpp
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@@ -661,31 +661,6 @@ bool CWallet::SelectCoinsForStaking(CAmount& nTargetValue, std::set<std::pair<co
return true;
}
bool CheckKernel(CBlockIndex* pindexPrev, unsigned int nBits, int64_t nTime, const COutPoint& prevout, int64_t* pBlockTime)
{
uint256 hashProofOfStake, targetProofOfStake;
CTransaction txPrev;
CDiskTxPos txindex;
if (!ReadFromDisk(txPrev, txindex, *pblocktree, prevout))
return false;
// Read block header
CBlock block;
const CDiskBlockPos& pos = CDiskBlockPos(txindex.nFile, txindex.nPos);
if (!ReadBlockFromDisk(block, pos, Params().GetConsensus()))
return false;
int nDepth;
if (IsConfirmedInNPrevBlocks(txindex, pindexPrev, Params().GetConsensus().nStakeMinConfirmations - 1, nDepth))
return false;
if (pBlockTime)
*pBlockTime = block.GetBlockTime();
return CheckStakeKernelHash(pindexPrev, nBits, new CCoins(txPrev, pindexPrev->nHeight), prevout, nTime);
}
// miner's coin stake reward
int64_t GetProofOfStakeReward(const CBlockIndex* pindexPrev, int64_t nCoinAge, int64_t nFees)
{
@@ -735,6 +710,21 @@ bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int
if (setCoins.empty())
return false;
static std::map<COutPoint, CStakeCache> stakeCache;
if(stakeCache.size() > setCoins.size() + 100){
//Determining if the cache is still valid is harder than just clearing it when it gets too big, so instead just clear it
//when it has more than 100 entries more than the actual setCoins.
stakeCache.clear();
}
if(GetBoolArg("-stakecache", DEFAULT_STAKE_CACHE)) {
BOOST_FOREACH(const PAIRTYPE(const CWalletTx*, unsigned int)& pcoin, setCoins)
{
boost::this_thread::interruption_point();
COutPoint prevoutStake = COutPoint(pcoin.first->GetHash(), pcoin.second);
CacheKernel(stakeCache, prevoutStake); //this will do a 2 disk loads per op
}
}
int64_t nCredit = 0;
CScript scriptPubKeyKernel;
@@ -748,9 +738,9 @@ bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int
// Search backward in time from the given txNew timestamp
// Search nSearchInterval seconds back up to nMaxStakeSearchInterval
COutPoint prevoutStake = COutPoint(pcoin.first->GetHash(), pcoin.second);
int64_t nBlockTime;
uint32_t nBlockTime;
//LogPrintf("looking for coinstake \n");
if (CheckKernel(pindexPrev, nBits, txNew.nTime - n, prevoutStake, &nBlockTime))
if (CheckKernel(pindexPrev, nBits, txNew.nTime - n, prevoutStake, &nBlockTime, stakeCache))
{
// Found a kernel
LogPrint("coinstake", "CreateCoinStake : kernel found\n");